Horn.



PATENTED APR: 21, 1908.

A. S. MARTEN.

HORN.

APPLICATION FILED NOV.17, 190a.

3 V @M a mam FIE. 1. uvy /vrofi B W M A TTOR/VE Y.

' tages and results as may be brought out in similar View of the small end of the body corresponding parts in each of the several ferrule part with the inside and outside UNITED w s rn rnn'r enrich.

ALBERT S. MARTEN, OF EAST OltANGE, NEW JERSEY, ASSIGNOR TO THE TEA TBA Y (OM PANY OF NEWARK, N. J., A CORPORATION OFNEW JERSEY.

HORN.

Patented April 21, 1908.

Application filed November 17,1906. Serial No. 343,786.

To all whom it may concm:

Be it known that I, ALBERT S. MAIi'rnN, a citizen of the United States, residing at East Orange, in the county ofEsseX and State of NewJersey, have invented certain new and useful Improvements in Horns, of which the following is a specification.

The objects of this invention are to secure in a sound amplifying horn, a ferrule which shall be strong and stiff and at the same time of finished appearance; to secure a smooth circumferential surface on both the inside and the outside of the'ferrule Without any longitudinal seams; to avoid soldering and secure joints which are only pressed or reamed'together, and to obtain other advanthe following description.

Referring to the accompanying drawings, 111 which like numerals of reference indicate figures, Figure 1 is a side elevation. of a horn of my improved construction; Fig. 2 1s a portion of the horn showing its integral sleeves removed; and Fig. 3 is a plan of the same; Fig. 4 isa central longitudinal section of the small end of the horn taken as on line v 9:, Fig. 5, and Fig. 5 is a transverse section throughth ferrule of the horn ason liney, Fig. 4.

In said drawings, 1 indicates the body of the horn made tapering in any usual manner, and having a longitudinal seam 2 formed by overlapping and interlocking the edges of the metal. This seam as is usual in horns, projects inwardly in order'to provide a smooth exterior, and at the large end of the body 1, is a hell 3 of any ordinary type. At its small end, the said body l of the horn has an integral cylindrical ferrule portion 4 swaged down from the bodypart, and thus when I completed, connected to said body by, a l shoulder 5, as shown in Figs..2 and 3 more particularly. The longitudinal seam 2 of the IOIIl body stops short of the said cylindrical ferrule part 4, and for said ferrule art the edges of the metal simply abut, as s own at 6 in said Figs. 2 and 3. This result is secured by notching the end of the horn body or cutting awa the margins of the metal sections as wi 1 be understood by those portion 4 is smoothly cylindrical on both inside and outside. An outer sleeve or lining 7, preferably made of seamless tubing, and

fitting-nicely, is then slipped over the said ferrule portion l, the end edges of said sleeve being adjacent to the shoulder 5, rolledor curled outwardly and bachwardly as at 8. The opposite end of the said outer lining 7 preferably terminates somewhat short of the end of the ferrule portion 4. An inside lining or sleeve 10', also preferably of seamless tubing, is then fitted tightly Within the ferrule portion l of the horn. body, and its outer end edges curled'or rolled. outwardly forward, as at 11, to abut edgewise against the outside of the ferrule portion 4 and en gage at their forward sides the outer end 9. of the sleeve 7. The inner end 12 of the inner sleeve 10 is then reamed or pressed outwardly to overreach the shoulder 5 on the inside of the horn and thus prevent the saith inner sleeve or lining from escaping outward.

It will be understood that by the above construction, the integral ferrule portion 4- and its inside and outside linings are firmly bound together, so that a solid strong ferrule is provided for the horn. There are. no exposed unfinished edges, and both the outside ening is especially needed, as for instance- When the horn is supported solely by being slipped at its ferrule telescopically upon the neck of a speaker or sound-hox. Furthermore, it wouldbe impossible to end a straight.

"cut-off sleeve on the curved shoulder joining the horn body and its ferrule portion, without there being a very obtrusive, unsightly and even dangerous sharp edge. By means of the roll 8, however, the end edge of the outer sleeve is turned in or butted against the and inside of the ferrule is smoothly cylin- 'cylindrical part of the sleeve, and a neat,

smooth finish secured which cannot scratch or be unpleasant to the touch.

Having thus described my invention, what I claim as new is:

1. In a born, the combination of a flaring body having a reduced integral ferrule portion forming with said body an annular shoulder and having a longitudinaljoint, an exterior annular enlargement at the extremity of the ferrule, and a seamless sleeve upon the outside of said ferrule portion between: said shoulder and annular enlargement.

'2. In a horn, the combination of a flaring body having a reduced integral ferrule portion forming with said body an annular shoulder and having a longitudinal joint, an exterior annular enlargement at the extreniity of the ferrule, and a seamless sleeve upon the outside of said ferrule portion between said shoulder and annular enlargement having its end next said shoulder fitted thereagainst with the edges rolled outwardly and Teturned againstitself.

3. In a horn, the combination of a flaring body having a reduced integral ferrule portion forming with said body an annular shoulder and having a longitudinal joint, an outward roll at the extremity of said ferrule portion returned against the said ferrule, and a sleeve upon the outside of said ferrule portion between said shoulder and roll havingits end edges next the said roll abutting thereagainst.

4. I11 a horn, the combination of a flaring body having a reduced integral ferrule portion forming with said body an annular shoulder and having a longitudinal joint, a tubular lining inside said ferrule portion having one end curled outwardly over the end edges of the ferrule portion and its other end expanded into the flaring part of the horn, and an outer sleeve upon the said ferrule portion between the said shoulder and curled end of the said lining. a

5. In a horn, the combination of a flaring body having a reduced integral ferrule por tion forming with said body an annular shoulder and having a longitudinal joint, a tubular lining inside said ferrule portion having one end rolled up over the end edges of the ferrule portion and its other end expanded into the flaring part of the horn, and an outer sleeve upon the said ferrule portion between the said shoulder and said outward roll of the lining having its end next said shoulder fitted thereagainst with the edges rolled outwardly and returned upon itself.

- 6. In a horn, the combination of a flaring body having a reducedintegral ferrule portion forming with said body an annular shoulder and having a longitudinal joint, a tubular lining inside said ferrule portion having one end curled outwardly over the end edges of the ferrule portion and returned to abut at its edges against the outer surface of said ferrule portion, the other end of said lining being expanded into the flaring part of the horn, and a sleeve upon the outside of said ferrule portion having its edges at one end abutting against the said outward curl of the lining and its other end portion fitted against the said shoulder with the edges rolled outward and returned against itself.

7. In a horn, the combination of a flaring body having a reduced integral ferrule portion forming with said body an annular shoulder and being longitudinally slit from said'shoulder to its extremity, aninner tubular lining fitting said ferrule nation and having one end curled outwardly over the extremity of the ferrule portion and its other end expanded into the flaring part of the horn, and a sleeve upon the outside of the ferrule portion between said curl and said should er.

8. In a horn, the combination of a flaring body having, a reduced integral ferrule portion forming with said body an annular shoulder and being longitudinally slit from said shoulder to its extremity, an inner tubular lining fitting said ferrule )ortion and having one end curled outwardly over the extremity of the ferrule portion and its other end expanded into the flaring part of the horn, and a sleeve upon the outside of the ferrule portion between said curl and said shoulder having its end next said shoulder fitted theragainst with the edges rolled outwardly and returned against itself.

9. In a horn,- the combination of a flaring body having a reduced integral ferrule por- 7 tion formin .with said body an annular shoulder an being longitudinally slit from said shoulder to its extremity, an inner tubular lining fitting said ferrule ortion and,

having one end curled outward y over the extremity of the ferrule portion and returned to abut edgewise against the outer surface of said ferrule ortion and its other end ex panded into t e flaring part of the horn, and a sleeve upon the outside of said ferrule portion having its edges at one end abutting against the said returned portion of the inner lining and its other end portion fitted against the said shoulder with its end edges rolled outwardly and returned against. itself.

ETHEL B. REED, FREDERICK GERMANN, Jr. 

